Abstract: Microscopic capsules comprising a nucleus surrounded by a film-forming polymeric layer having a substantially continuous light-reflecting metallic coating thereover.

Abstract: The present invention relates to photography and, more particularly, to a novel spectrally (optically) sensitized radiation recording photographic element which comprises a cyanine dye of the formula: ##STR1## wherein L represents a methine group; m represents a positive integer of from 1 to 3, inclusive; Z and Z.sub.1 each represents the nonmetallic atoms necessary to complete a cyanine dye heterocyclic ring system containing a 5 or 6 membered heterocyclic nucleus; R and R.sub.1 each represents a divalent acyclic or cyclic group; X.sup.+ represents a quaternary ammonium, sulfonium or phosphonium group; Y.sup.- represents a --SO.sub.3.sup.- or --COO.sup.- group; and W.sup.- represents an anion.

Abstract: The present invention relates to photography, particularly, to photographic products specifically adapted for employment in specified photographic diffusion transfer color processes and, more particularly, to photographic products which comprise a fixed or permanent composite photosensitive structure including, as essential layers, in sequence, a first dimensionally stable layer transparent to actinic radiation; a polymeric layer dyeable by a diffusion transfer process dye image-forming material; a processing composition permeable opaque layer; a first photosensitive silver halide layer having associated therewith a diffusion transfer process dye image-forming material; a second photosensitive silver halide layer; a second dimensionally stable layer transparent to actinic radiation; and means for providing a diffusion transfer process processing composition preferably retaining opacifying agent intermediate the dye image-forming material impermeable polymeric layer and the next adjacent second transparent dim

Abstract: The present invention relates to photography and, more particularly, to diffusion transfer process photographic film units which comprise a photosensitive element adapted to provide, by diffusion transfer photographic processing, selective dye image recordation of incident actinic radiation as a function of the point-to-point degree of photosensitive element exposure, which film unit includes a plurality of essential layers including a polydisperse silver halide photosensitive emulsion layer comprising a particulate dispersion of photosensitive silver iodobromide, iodochloride or iodochlorobromide crystals possessing a mean iodide concentration within the range of about 0.5 to 15 mole % and in which not in excess of about 20%, by weight, of the crystals deviate from the selected mean iodide concentration by in excess of about .+-.